Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction - I65
This notation helps users understand the scope of a code I65 category and provides additional information about the conditions or terms that fall under that category.
Category Includes:
- embolism of precerebral artery
- narrowing of precerebral artery
- obstruction (complete) (partial) of precerebral artery
- thrombosis of precerebral artery
Excludes1: It indicates that the conditions described by two codes cannot occur together in the same patient. These codes are mutually exclusive.
Type 1 Excludes:
- insufficiency, NOS, of precerebral artery (G45.-)
- insufficiency of precerebral arteries causing cerebral infarction (I63.0-I63.2)
These ranges represents subcategories of Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction. The "I65" signifies that these are the diseases within this broad category.
Codes:
- I65.0 - Occlusion and stenosis of vertebral artery
- I65.01 - Occlusion and stenosis of right vertebral artery
- I65.02 - Occlusion and stenosis of left vertebral artery
- I65.03 - Occlusion and stenosis of bilateral vertebral arteries
- I65.09 - Occlusion and stenosis of unspecified vertebral artery
- I65.1 - Occlusion and stenosis of basilar artery
- I65.2 - Occlusion and stenosis of carotid artery
- I65.21 - Occlusion and stenosis of right carotid artery
- I65.22 - Occlusion and stenosis of left carotid artery
- I65.23 - Occlusion and stenosis of bilateral carotid arteries
- I65.29 - Occlusion and stenosis of unspecified carotid artery
- I65.8 - Occlusion and stenosis of other precerebral arteries
- I65.9 - Occlusion and stenosis of unspecified precerebral artery